Are there any unique features on Page Router?

[realduolaf]

Is there a function that Page Router can do but App Router cannot?

I want to assess what I will lose after migrating to App Router.

Looking forward to reply.

[icyJoseph]

I think maybe - considering some upcoming features to App Router, two differences might be:

• Router Events start -to- end - There are some workarounds and APIs to use in App Router, but I think people still miss those
• Setting status codes "freely" - cuz of streaming in App Router, the status code can't be set as you stream UI, because the headers were already sent to the client
• The data fetching functions you are familiar with - technically not available in App Router, but also not needed

Right now those come to mind, I'll see if I remember more and update ~ but other than when asked the other way around, there's a lot one would let go of moving back to Pages Router

[mdj-uk]

Last I checked, app router can't do static export including dynamic routes unless all paths are known at build time. (See https://nextjs.org/docs/app/guides/static-exports#unsupported-features)

It's possible in pages router (but requires configuring server https://nextjs.org/docs/pages/guides/static-exports#deploying)